[  488.336958] netdevsim netdevsim512 eni512np1: renamed from eth1
[  488.437262] netdevsim netdevsim314 eni314np1: renamed from eth0
[  488.763287] Could not find device with ifindex 2000 in netnsfd 11
[  488.763456] Could not find netns with fd: 2000
[  488.763552] Cannot link a netdevsim to itself
[  488.763675] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).